Current conditions at
Illinois Valley Regional Airport (KVYS)
Lat: 41.35°NLon: 89.15°WElev: 650ft.
Fair
64°F
18°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.06 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 29 Jul 11:18 pm CDT |
Extended Forecast for
Marseilles IL
Tonight

Low: 59 °F
Patchy Fog
Thursday
High: 85 °F
Patchy Fog
then SunnyThursday Night

Low: 66 °F
Mostly Cloudy
Friday
High: 78 °F
Chance
Showers then
ShowersFriday Night

Low: 66 °F
Showers
Saturday

High: 78 °F
Showers
LikelySaturday Night

Low: 64 °F
Slight Chance
ShowersSunday

High: 81 °F
Mostly Sunny
Sunday Night

Low: 62 °F
Mostly Clear
Detailed Forecast
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 59. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest around 5 mph.
Thursday Night
Mostly cloudy, with a low around 66. Calm wind.
Friday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 66. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Marseilles IL
41.33°N 88.68°W
41.33°N 88.68°W
8:31 pm CDT Jul 29, 2026
11pm CDT Jul 29, 2026-6pm CDT Aug 5, 2026


